Improvement in ships  pumps



A. F. EELLS & S. C. LOUD.

SHIPS PUMP Patented March 27,1877.

INVENTB \A/lTN E55E5- Unit-TEE STATES PATENT QFFIOE.

ALBERT F. EELLS AND SAMUEL G. LOUD, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SHIPS PUMPS.

Specification forming part of Letters Patent No. 188,879, dated March27, 1877; application filed March 3, 1877.

and SAMUEL O. LOUD, both of Boston, in the county of Suffolk and Stateof Massachusetts, have invented certain new and useful ImprovementsinShips Pumps, of which the foling is a specification Our inventionrelates to the peculiar construction of ships pumps; and consists in thearrangement of a diaphragm-chamber placed at the side of the uptake,andof valves in the upper part of the uptake,'which, acting inconnection with the said diaphragm-chamber, constitute a pump which hasa straight uptake, having no obstruction in it, except twopuppet-valves, which are placed at the extreme upper end, and are soaccessible as to be removed at any time by the hand alone, thus leavingthe uptake free to be cleansed, or used as a sounding-well.

Figure 1 is a plan of our invention. Fig. 2

. is a section of the same; Fig. 3, a cross-secment for steadying anddirecting the valves as they rise and fall.

Above the upper valve, K, we have a discharge-chamber, N. This chamberis provided with an outlet-pipe, P,

and a little bridge,P,which causes the overflowing water to alwaysremain a little above the valve K. In other words, the upper valve, K,is kept submerged or water-packed. R is a removable cap. A is adiaphragm-chamber, connected, as shown, to the space between the valvesK and K, Fig. 2. 0 represents a diaphragm made of any suitable material.On either side of this diaphragm we place a concave disk, D and D. E isa stem, which servesto connect the diaphragm and the disks D D. Throughthis stem E motion is communicated to the diaphragm. In other words, thepump is worked. These disks D and D are placed with their convex sidestogether, and serve to form supports for the flexible diaphragm 0. Theyalso prevent wrinkling, and allow of greater pressure-to be appliedwithout danger of rupture. Upon one of the disks D or D we form a bead,d, Fig. 2, which serves to assist in fastening the flexible diaphragm U.The bead d serves to hold the outer edge of the diaphragm 0 more firmly.

We claim- The combination of the diaphraginpump D G D A with the"alve-chamber H in the uptake,said chamber being provided with valves KK, all operating together, substantially as described.

ALBERT F. EELLS. SAMUEL G. LOUD. Witnessesz' FRANK G. PARKER, WM. A.WILSON.

